Institut für Parallele und Verteilte Systeme (IPVS)

Publikationen

Eine Übersicht der Publikationen des Instituts für Parallele und Verteilte Systeme

Publikationen AS: Bibliographie 2005 BibTeX

 
@inproceedings {INPROC-2005-84,
   author = {Uwe Heinkel and Carmen Constantinescu and Bernhard Mitschang},
   title = {{Integrating Data Changes with Data from Data Service Providers}},
   booktitle = {Proceedings of the 18th International Conference on Computer Applications in Industry and Engineering (CAINE 2005)},
   publisher = {ICSA},
   institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
   pages = {146--151},
   type = {Konferenz-Beitrag},
   month = {November},
   year = {2005},
   language = {Englisch},
   cr-category = {H.2.5 Heterogeneous Databases},
   contact = {Uwe.Heinkel@ipvs.uni-stuttgart.de},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {In these days, enterprises are more and more confronted to fast changing and turbulent markets. In order to remain competitive, they have to quickly adapt themselves to these new situations. The integration solutions employed in such an environment enable the required agility, by using a loose and flexible integration architecture. We propose an integration solution based on the concept of propagating data changes from one information system to the affected information systems. This paper focuses on the question: how data from other data services can be accessed and exploited to enhance a data change propagation system. These services are based on a service-oriented architecture (SOA) using XML technologies (e.g. SOAP). We developed the Data Service Description Language (DSDL) to define the data structures of the data service. This description is used to create the above mentioned Transformation Scripts as well as to generate requests for accessing remote data. A layered system approach is introduced to facilitate both the architecture and its implementation.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-84&engl=0}
}
@inproceedings {INPROC-2005-63,
   author = {Joos-Hendrik B{\"o}se and Stefan B{\"o}ttcher and Le Gruenwald and Evaggelia Pitoura and Peter Reiher and George Samaras and Thomas Schwarz and Can T{\"u}rker},
   title = {{04441 Working Group - Research Issues in Mobile Transactions}},
   booktitle = {Mobile Information Management},
   editor = {Margaret H. Dunham and Birgitta K{\"o}nig-Ries and Pitoura Evaggelia and Peter Reiher and Can T{\"u}rker},
   address = {Schloss Dagstuhl, Germany},
   publisher = {Internationales Begegnungs- und Forschungszentrum (IBFI},
   institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
   series = {Dagstuhl Seminar Proceedings},
   volume = {04441},
   type = {Konferenz-Beitrag},
   month = {Januar},
   year = {2005},
   keywords = {Transactions; mobile clients; multi-hop wireless networks},
   language = {Englisch},
   cr-category = {H.2.4 Database Management Systems},
   ee = {http://drops.dagstuhl.de/opus/volltexte/2005/168/},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {This document discusses three scenarios for databases with mobile clients, summarizes typical applications and requirements for each of the three scenarios, and outlines the open research issues which should be solved within each of the three scenarios. While the first scenario consists of mobile clients that are connect to a wired network, the second scenario consists of a network of mobile clients with a single-hop distance to each other but without a wired network, and the third scenario considers a network of mobile clients some of which are in multi-hop distance.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-63&engl=0}
}
@inproceedings {INPROC-2005-62,
   author = {Susanne Boll and Martin Breunig and Nigel Davies and Christian S. Jensen and Birgitta K{\"o}nig-Ries and Rainer Malaka and Florian Matthes and Christoforo Panayiotou and Simonas Saltenis and Thomas Schwarz},
   title = {{04441 Working Grou - Towards a Handbook for User-Centred Mobile Application Design}},
   booktitle = {Mobile Information Management},
   editor = {Margaret H. Dunham and Birgitta K{\"o}nig-Ries and Pitoura Evaggelia and Peter Reiher and Can T{\"u}rker},
   address = {Schloss Dagstuhl, Germany},
   publisher = {Internationales Begegnungs- und Forschungszentrum (IBFI},
   institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
   series = {Dagstuhl Seminar Proceedings},
   volume = {04441},
   type = {Konferenz-Beitrag},
   month = {Januar},
   year = {2005},
   keywords = {User-Centred Mobile Application Design},
   language = {Englisch},
   cr-category = {D.2.10 Software Engineering Design},
   ee = {http://drops.dagstuhl.de/opus/volltexte/2005/166},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {Why do we have difficulties designing mobile apps? Is there a ``Mobile RUP''?},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-62&engl=0}
}
@inproceedings {INPROC-2005-58,
   author = {Daniela Nicklas and Susanne B{\"u}rklen and Tobias Drosdol and Nicola H{\"o}nle},
   title = {{Benefits of Context Models in Smart Environments}},
   booktitle = {2. GI/ITG KuVS Fachgespr{\"a}ch Ortsbezogene Anwendungen und Dienste},
   editor = {J{\"o}rg Roth},
   address = {Hagen},
   publisher = {Fernuniversit{\"a}t Hagen},
   institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
   series = {Informatik Bericht},
   volume = {324},
   pages = {12--15},
   type = {Konferenz-Beitrag},
   month = {Juni},
   year = {2005},
   keywords = {context models; smart environment; smart room; Nexus},
   language = {Englisch},
   cr-category = {H.4 Information Systems Applications},
   ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2005-58/INPROC-2005-58.pdf,     http://dreamteam.fernuni-hagen.de/fg_lbs/meeting_2/meeting_2.html,     http://www.nexus.uni-stuttgart.de},
   contact = {daniela.nicklas@informatik.uni-stuttgart.de susanne.buerklen@informatik.uni-stuttgart.de tobias.drosdol@informatik.uni-stuttgart.de nicola.hoenle@informatik.uni-stuttgart.de},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware;     Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Verteilte Systeme},
   abstract = {Ongoing technologic advances drive the emergence of smart items, everyday objects with embedded microcomputers and communication capabilities. In a smart envi-ronment a multitude of such smart items exist to assist its users. In this paper, we will show how smart environments can benefit from the concepts of the Nexus platform, an open pervasive computing system that supports various kinds of context-aware applica-tions by providing a federated, potentially global context model.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-58&engl=0}
}
@inproceedings {INPROC-2005-57,
   author = {Christoph Mangold and Holger Schwarz and Bernhard Mitschang},
   title = {{Improving Intranet Search Engines Using Context Information from Databases}},
   booktitle = {Proceedings of the 14th ACM International Conference on Information and Knowledge Management (CIKM 2005), Bremen, Germany, October 31 - November 5, 2005},
   editor = {A. Chowdhury and N. Fuhr and M. Ronthaler and H.-J. Schek and W. Teiken},
   publisher = {ACM Press},
   institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
   pages = {349--350},
   type = {Konferenz-Beitrag},
   month = {Oktober},
   year = {2005},
   isbn = {1-59593-140-6},
   language = {Englisch},
   cr-category = {H.3.3 Information Search and Retrieval},
   ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2005-57/INPROC-2005-57.pdf},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {Information in enterprises comes in documents and databases. From a semantic viewpoint, both kinds of information are usually tightly connected. In this paper, we propose to enhance common search-engines with contextual information retrieved from databases. We establish system requirements and anecdotally demonstrate how documents and database information can be represented as the nodes of a graph. Then, we give an example how we exploit this graph information for document retrieval.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-57&engl=0}
}
@inproceedings {INPROC-2005-36,
   author = {Mih{\'a}ly Jakob and Fabian Kaiser and Holger Schwarz},
   title = {{SEMAFOR: A Framework for an Extensible Scenario Management System}},
   booktitle = {Proc. of the IEEE International Engineering Management Conference (IEMC) 2005; 2005 in St. John's, Newfoundland, September 11-14, 2005},
   publisher = {IEEE},
   institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
   pages = {1--5},
   type = {Konferenz-Beitrag},
   month = {September},
   year = {2005},
   language = {Englisch},
   cr-category = {H.3 Information Storage and Retrieval},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {The development of successful new products and services in highly dynamic business environments has become an extremely difficult task. Innovation managers have to utilize a considerable amount of enterprise-internal and enterprise-external information to judge the potential of new products, services and technologies. Scenario management is a powerful instrument to face this problem. Scenarios represent an intuitive concept to comprehend complex present-day and future situations. The scenario technique is a method for building such scenarios. Assessments of future business environments relying on structured scenarios enable innovation managers to target lucrative market segments and to select promising product ideas. However, diverse enterprise-internal and enterprise-external resources have to be utilized to assist the scenario development process. Last but not least, existing methods are often extremely time-consuming and existing tools for scenario development fail to provide a comprehensive solution as they are limited to certain steps in fixed workflows. In this paper, we propose a modular web-based framework for the flexible and efficient development and handling of scenarios. Key aspects of our framework are module-based enterprise-specific workflows, the integration of distributed human resources into the scenario development process and diverse interfaces to enterprise-internal and enterprise-external information sources. The framework is based on self-contained software modules that cover important steps of the scenario management process. This modularity allows the easy supplementation of existing 'scenario technique' methods with newly developed methods that are incorporated into modules and can be combined in a flexible way to fit enterprise-specific requirements.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-36&engl=0}
}
@inproceedings {INPROC-2005-33,
   author = {Carmen Constantinescu and Uwe Heinkel and Jan Le Blond and Stephan Schreiber and Bernhard Mitschang and Engelbert Westk{\"a}mper},
   title = {{Flexible Integration of Layout Planning and Adaptive Assembly Systems in Digital Enterprises}},
   booktitle = {Proceedings of the 38th CIRP International Seiminar on Manufacturing Systems (CIRP ISMS)},
   publisher = {CIRP},
   institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
   pages = {10--18},
   type = {Konferenz-Beitrag},
   month = {Mai},
   year = {2005},
   language = {Deutsch},
   cr-category = {J.6 Computer-Aided Engineering,     C.2.4 Distributed Systems},
   ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2005-33/INPROC-2005-33.pdf},
   contact = {Uwe.Heinkel@informatik.uni-stuttgart.de},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {The agility and adaptability of an enterprise becomes more and more a desired feature and a key factor of success. Especially manufacturing enterprises have to be able to respond quickly to both external and internal changes. This includes the ability to plan the optimal factory configuration and the assembly processes with little effort in short time. The tools of the Digital Factory support manufacturing enterprises shortening planning time and increasing planning quality. As a motivation of our work in the field of Enterprise Application Integration, a scenario is described, which reveals how a transformable manufacturing enterprise reacts to market changes with the support of digital tools. Motivated by our scenario we developed an integration solution called Stuttgart Integration Platform. A main role in our approach plays a solution for the Digital Factory, which stores all needed information about the planned facility layouts and assembly processes. The paper presents our central integration solution Champagne, and three integrated systems: the Digital Factory Solution, the Factory Planning Table and the Assembly Configuration Tool.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-33&engl=0}
}
@inproceedings {INPROC-2005-32,
   author = {Stefan Berger and Christoph Mangold and Sebastian Meyer and Engelbert Westk{\"a}mper},
   title = {{Knowledge Management in Assembly}},
   booktitle = {Proceedings of the 38th CIRP international seminar on manufacturing systems},
   publisher = {CIRP},
   institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
   type = {Konferenz-Beitrag},
   month = {Mai},
   year = {2005},
   language = {Englisch},
   cr-category = {H.3.3 Information Search and Retrieval},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {Turbulent business environments force enterprises to ever faster answers and adaptations in order to secure their competitive ability. Especially mass customization can be seen as one driver for variable and even smaller number of pieces till lot size 1. Its impacts can be clearly noticed e.g. in assembly where today changeover and set up processes define the daily business. In combination with ever more complex products and the operation of facilities in technological threshold the (re-)use of workers knowledge and experience get a key factor for mutability and responsibility. The article will show starting points for the handling of knowledge in assembly which have been researched within the SFB467-project 'Knowledge based management for the versatile assembly' at the University of Stuttgart.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-32&engl=0}
}
@inproceedings {INPROC-2005-17,
   author = {Rodrigo Salvador Monteiro and Geraldo Zimbrao and Holger Schwarz and Bernhard Mitschang and Jano Moreira De Souza},
   title = {{Building the Data Warehouse of Frequent Itemsets in the DWFIST Approach}},
   booktitle = {Proceedings of the 15th International Symposium on Methodologies for Intelligent Systems Saratoga Springs, New York - May 25-28, 2005},
   publisher = {Springer},
   institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
   pages = {1--9},
   type = {Konferenz-Beitrag},
   month = {Mai},
   year = {2005},
   isbn = {3-540-25878-7},
   language = {Englisch},
   cr-category = {H.2.7 Database Administration,     H.2.8 Database Applications},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {Some data mining tasks can produce such great amounts of data that we have to cope with a new knowledge management problem. Frequent itemset mining fits in this category. Different approaches were proposed to handle or avoid somehow this problem. All of them have problems and limitations. In particular, most of them need the original data during the analysis phase, which is not feasible for data streams. The DWFIST (Data Warehouse of Frequent ItemSets Tactics) approach aims at providing a powerful environment for the analysis of itemsets and derived patterns, such as association rules, without accessing the original data during the analysis phase. This approach is based on a Data Warehouse of Frequent Itemsets. It provides frequent itemsets in a flexible and efficient way as well as a standardized logical view upon which analytical tools can be developed. This paper presents how such a data warehouse can be built.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-17&engl=0}
}
@inproceedings {INPROC-2005-112,
   author = {Marko Vrhovnik},
   title = {{Update-Propagation in gestaffelten und verteilten Caches}},
   booktitle = {Beitragsband zum Studierenden-Programm bei der 11. Fachtagung ``Datenbanken f{\"u}r Business, Technologie and Web'', GI Fachbereich Datenbanken und Informationssysteme, Karlsruhe, 1. M{\"a}rz 2005},
   publisher = {Universit{\"a}t Magdeburg, Fakult{\"a}t f{\"u}r Informatik},
   institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
   pages = {43--45},
   type = {Konferenz-Beitrag},
   month = {M{\"a}rz},
   year = {2005},
   language = {Deutsch},
   cr-category = {C.2.4 Distributed Systems,     H.2.4 Database Management Systems,     H.3.3 Information Search and Retrieval},
   ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2005-112/INPROC-2005-112.pdf},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {In der Forschungsgruppe NEXUS der Universit{\"a}t Stuttgart wird eine offene Plattform f{\"u}r ortsbezogene Anwendungen entwickelt. Durch die Offenheit k{\"o}nnen beliebige Datenanbieter ihre Informationen durch die NEXUS-Plattform bereitstellen. Eine F{\"o}derations-Middleware verbirgt vor einer Anwendung die Verteilung der Daten und kombiniert Daten verschiedener Anbieter in geeigneter Weise. Zur Beschleunigung des Datenzugriffs werden in der NEXUS-Plattform Zwischenspeicher (Caches) eingesetzt, u.a. in der F{\"o}derations-Middleware, als auch in mobilen Endger{\"a}ten, auf denen NEXUS-Anwendungen typischerweise ausgef{\"u}hrt werden. Durch eine solche Staffelung und Verteilung von Caches k{\"o}nnen Daten ``n{\"a}her'' an eine Anwendung positioniert und entsprechend schneller geliefert werden. Um die Konsistenz zwischengespeicherter Daten sicherstellen zu k{\"o}nnen, m{\"u}ssen Aktualisierungen auch in den Caches vollzogen werden. In dieser Diplomarbeit wurde der L{\"o}sungsraum zur Propagation von Aktualisierungen (Updates) zu den jeweiligen Caches durchleuchtet. Dabei wurden verschiedene Cache-Konsistenzsemantiken erstellt und Strategien entwickelt, wie diese im NEXUS-System umgesetzt werden k{\"o}nnen. Ferner wurde untersucht, welche Auswirkungen die einzelnen L{\"o}-sungsans{\"a}tze auf die Autonomie der einzelnen Komponenten der NEXUS-Plattform haben.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-112&engl=0}
}
@inproceedings {INPROC-2005-111,
   author = {Albert Maier and Bernhard Mitschang and Frank Leymann and Wolfson Dan},
   title = {{On Combining Business Process Integration and ETL Technologies}},
   booktitle = {Datenbanksysteme in Business, Technologie und Web (BTW'05)},
   editor = {Gesellschaft f{\"u}r Informatik},
   publisher = {K{\"o}llen},
   institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
   pages = {533--546},
   type = {Konferenz-Beitrag},
   month = {M{\"a}rz},
   year = {2005},
   isbn = {3-88579-394-6},
   language = {Englisch},
   cr-category = {H.2.8 Database Applications,     H.3.3 Information Search and Retrieval},
   ee = {http://btw2005.aifb.uni-karlsruhe.de/},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen, Architektur von Anwendungssystemen;     Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {On Combining Business Provess Integration and ETL Technologies},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-111&engl=0}
}
@inproceedings {INPROC-2005-110,
   author = {Cataldo Mega and Frank Wagner and Bernhard Mitschang},
   title = {{From Content Management to Enterprise Content Management}},
   booktitle = {Datenbanksysteme in Business, Technologie und Web},
   editor = {Gesellschaft f{\"u}r Informatik},
   publisher = {K{\"o}llen},
   institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
   pages = {596--613},
   type = {Konferenz-Beitrag},
   month = {M{\"a}rz},
   year = {2005},
   isbn = {3-88579-394-6},
   language = {Englisch},
   cr-category = {H.2.8 Database Applications,     H.3.3 Information Search and Retrieval},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {In this paper we will provide a step-by-step description on what it means to evolve the architecture of a traditional content management system into an Enterprise Content Management (ECMS) system, explain the differences of both systems and motivate that this transformation is necessary. By analyzing business scenarios in the realm of different content management domains, we will explain why today’s content management systems struggle when it comes to satisfy the need for performance, scalability and business resilience. Using the system design of IBM DB2 Content Manager as reference point we will outline and discuss some of the new key technical challenges found when promoting ondemand ECM services and look at their affordability. By detailing a few representative use cases we will perform a problem analysis, and an attempt will be made to present an enhanced ECM system design that makes use of a component ‚virtualization’ approach in order to allow for a dynamic services infrastructure to be setup and which capitalizes on proven peer-peer and grid technology.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-110&engl=0}
}
@inproceedings {INPROC-2005-06,
   author = {Mih{\'a}ly Jakob and Matthias Grossmann and Daniela Nicklas and Bernhard Mitschang},
   title = {{DCbot: Finding Spatial Information on the Web}},
   booktitle = {Proceedings of the 10th International Conference on Database Systems for Advanced Applications (DASFAA 2005)},
   address = {Beijing},
   publisher = {??},
   institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
   type = {Konferenz-Beitrag},
   month = {April},
   year = {2005},
   language = {Deutsch},
   cr-category = {H.2.8 Database Applications,     H.3.3 Information Search and Retrieval,     H.5.4 Hypertext/Hypermedia},
   ee = {http://www.nexus.uni-stuttgart.de},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {The WWW provides an overwhelming amount of information, which spatially indexed can be a valuable additional data source for location- based applications. By manually building a spatial index, only a fraction of the available resources can be covered. This paper introduces a system for the automatic mapping of web pages to geographical locations. Our web robot uses several sets of domain specific keywords, lexical context rules, that are automatically learned, and a hierarchical catalogue of geographical locations that provides exact geographical coordinates for locations. Spatially indexed web pages are used to construct Geographical Web Portals, which can be accessed by different location-based applications. In addition, we present experimental results demonstrating the quantity and the quality of automatically indexed web pages.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-06&engl=0}
}
@inproceedings {INPROC-2005-05,
   author = {Uwe-Philipp K{\"a}ppeler and Georg Kindermann and Daniela Nicklas and Nicola H{\"o}nle and Dominique Dudkowski},
   title = {{Shared Dynamic Context Models: Benefits for Advanced Sensor Data Fusion for Autonomous Robots}},
   booktitle = {Proceedings of Artificial Intelligence and Applications 2005; Innsbruck, Austria, February, 14-16, 2005},
   publisher = {IASTED},
   institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
   type = {Konferenz-Beitrag},
   month = {Februar},
   year = {2005},
   keywords = {Autonomous; Robots; Sensor; Fusion; Nexus; Context; Sensorfusion},
   language = {Englisch},
   cr-category = {H.3.3 Information Search and Retrieval,     I.2.9 Robotics},
   contact = {kaeppeler@informatik.uni-stuttgart.de},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Verteilte Systeme;     Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Bildverstehen;     Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {Information provided by a shared dynamic context model offers new possibilities in the realm of autonomous robots. The availability of external context information can be used by a robot to extend and to validate the locally acquired knowledge about its dynamic environment. A lot of helpful context information is already available in digital form and its quantity will increase rapidly, according to the vision of ubiquitous computing. In this paper we present the Nexus Platform capable of managing a global dynamic context model that can be addressed and accessed in an easy and uniform way by all kinds of context-aware applications (like robots). Advantages for an autonomous wheelchair robot using the Nexus Platform are depicted within an airport scenario. We further present a framework for a sensor fusion agent, able to perform multi-sensor data fusion with selective attention control, concerning the current situation of the environment.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-05&engl=0}
}
@inproceedings {INPROC-2005-04,
   author = {Nicola H{\"o}nle and Uwe-Philipp K{\"a}ppeler and Daniela Nicklas and Thomas Schwarz},
   title = {{Benefits Of Integrating Meta Data Into A Context Model}},
   booktitle = {Proceedings of 2nd IEEE PerCom Workshop on Context Modeling and Reasoning (CoMoRea) (at 3rd IEEE International Conference on Pervasive Computing and Communication (PerCom'05)); Hawaii, March 12, 2005},
   publisher = {IEEE},
   institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
   type = {Konferenz-Beitrag},
   month = {M{\"a}rz},
   year = {2005},
   keywords = {meta data; context model; context-aware applications},
   language = {Englisch},
   cr-category = {H.2.1 Database Management Logical Design},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware;     Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Bildverstehen},
   abstract = {Meta data—data about data—improves the value of the operational data by giving applications and users additional information on the data’s origin, its precision or staleness. We outline the benefits of modeling meta data in context models: it can be used for resource finding, enhanced data selection, trust and data quality issues and sensor fusion. We show how meta data included into an object-based context model influences the data modeling and the selection process in the query language. Finally, we describe our implementation of the presented functionality in the Nexus platform.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-04&engl=0}
}
@inproceedings {INPROC-2005-03,
   author = {Matthias Grossmann and Martin Bauer and Nicola H{\"o}nle and Uwe-Philipp K{\"a}ppeler and Daniela Nicklas and Thomas Schwarz},
   title = {{Efficiently Managing Context Information for Large-scale Scenarios}},
   booktitle = {Proceedings of the 3rd IEEE Conference on Pervasive Computing and Communications: PerCom2005; Kauai Island, Hawaii, March 8-12, 2005},
   publisher = {IEEE Computer Society},
   institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
   type = {Konferenz-Beitrag},
   month = {M{\"a}rz},
   year = {2005},
   language = {Englisch},
   cr-category = {H.3.0 Information Storage and Retrieval General,     H.3.4 Information Storage and Retrieval Systems and Software},
   ee = {http://www.nexus.uni-stuttgart.de},
   contact = {matthias.grossmann@informatik.uni-stuttgart.de},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware;     Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Bildverstehen;     Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Verteilte Systeme},
   abstract = {In this paper, we address the data management aspect of large-scale pervasive computing systems. We aim at building an infrastructure that simultaneously supports many kinds of context-aware applications, ranging from room level up to nation level. This allembracing approach gives rise to synergetic benefits like data reuse and sensor sharing. We identify major classes of context data and detail on their characteristics relevant for efficiently managing large amounts of it. Based on that, we argue that for large-scale systems it is beneficial to have special-purpose servers that are optimized for managing a certain class of context data. In the Nexus project we have implemented five servers for different classes of context data and a very flexible federation middleware integrating all these servers. For each of them, we highlight in which way the requirements of the targeted class of data are tackled and discuss our experiences.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-03&engl=0}
}
@inproceedings {INPROC-2005-02,
   author = {Mih{\'a}ly Jakob and Matthias Grossmann and Nicola H{\"o}nle and Daniela Nicklas},
   title = {{DCbot: Exploring the Web as Value-added Service for Location-based Applications}},
   booktitle = {Proceedings of the 21st International Conference on Data Engineering, ICDE 2005, April 5-8, 2005, Tokyo, Japan},
   publisher = {IEEE Computer Society},
   institution = {Universit{\"a}t Stuttgart Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
   type = {Konferenz-Beitrag},
   month = {April},
   year = {2005},
   language = {Englisch},
   cr-category = {H.2.8 Database Applications,     H.3.1 Content Analysis and Indexing,     H.3.3 Information Search and Retrieval},
   ee = {http://www.nexus.uni-stuttgart.de},
   contact = {mihaly.jakob@informatik.uni-stuttgart.de},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {Location-based applications need information that can be spatially accessed. Typically, this data is exspecially gathered and preprocessed in a particular way (e.g. in a spatial data base). Up to now most of these applications ignore an existing large information space, the World Wide Web. Web pages can be mapped to locations and then accessed by location-aware applications with spatial predicates. We want to automate the process of mapping web pages to locations because of the huge amount of data available in the WWW. Our web robot DCbot analyses web pages using pre-defined rules and spatial knowledge and maps them to locations. In the demonstration we will show some location mapping results of DCbot and, in addition, we will let DCbot scan locally stored web pages at demonstration time, so that effects of changes of the content can be shown.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-02&engl=0}
}
@article {ART-2005-01,
   author = {Stefan Berger and Christoph Mangold and Sebastian Meyer},
   title = {{Ontologiebasiertes Wissensmanagement in der Montage - Wissen in turbulenten Zeiten strukturiert einsetzen}},
   journal = {Industrie Management},
   address = {Berlin},
   publisher = {Gito Verlag},
   volume = {21},
   number = {1},
   pages = {49--52},
   type = {Artikel in Zeitschrift},
   month = {Februar},
   year = {2005},
   language = {Deutsch},
   cr-category = {H.3.3 Information Search and Retrieval},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {Produzierende Unternehmen sind in turbulenten Aufgabenumfeldern mit permanenten, nicht vorhersehbaren Ver{\"a}nderungen konfrontiert, zu deren Bew{\"a}ltigung ihnen nur wenig Zeit zur Verf{\"u}gung steht. Bereits heute pr{\"a}gen Umr{\"u}st- und Einstellvorg{\"a}nge den Arbeitsalltag in der Montage. In diesem Umfeld kommt dem Menschen als Probleml{\"o}ser und damit der Ressource Wissen und deren Management eine immer bedeutendere Funktion zu. Der folgende Beitrag zeigt Ansatzpunkte f{\"u}r ein Wissensmanagement-System f{\"u}r die Montage.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2005-01&engl=0}
}
@inbook {INBOOK-2005-01,
   author = {Bernhard Mitschang and Daniela Nicklas and Matthias Grossmann and Thomas Schwarz and Nicola H{\"o}nle},
   title = {{Federating Location-Based Data Services}},
   series = {Data Management in a Connected World: Essays Dedicated to Hartmut Wedekind on the Occasion of His 70th Birthday},
   address = {Berlin},
   publisher = {Springer-Verlag},
   series = {Lecture Notes in Computer Science},
   volume = {3551},
   pages = {17--35},
   type = {Beitrag in Buch},
   month = {Juni},
   year = {2005},
   isbn = {3-540-26295-4},
   keywords = {federation; context models; nexus; location-based services},
   language = {Englisch},
   cr-category = {H.2.4 Database Management Systems,     H.3.3 Information Search and Retrieval,     H.3.5 Online Information Services},
   ee = {http://www.nexus.uni-stuttgart.de,     http://dx.doi.org/10.1007/11499923_2},
   contact = {mitsch@informatik.uni-stuttgart.de},
   department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
   abstract = {With the emerging availability of small and portable devices which are able to determine their position and to communicate wirelessly, mobile and spatially-aware applications become feasible. These applications rely on information that is bound to locations and managed by so-called location-based data services. Based on a classification of location-based data services we introduce a service-oriented architecture that is built on a federation approach to efficiently support location-based applications.},
   url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INBOOK-2005-01&engl=0}
}
 
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